Phylogeny and Ecology Determine Morphological Structure in a Snake Assemblage in the Central Brazilian Cerrado

França, Frederico Gustavo Rodrigues; Mesquita, Daniel Oliveira; Nogueira, Cristiano C.; Araújo, Alexandre F. B. de

doi:10.1643/ch-05-034

Cited by 76 publications

(133 citation statements)

References 42 publications

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“…Habitat generalist species as Boa constrictor, Corallus hortulanus, Helicops angulatus, Spilotes pullatus, Philodryas olfersii, and Erythrolamprus reginae, are found in many biome types, including the Caatinga scrublands of the Brazilian Northeast (Colli et al, 2002;Rodrigues, 2003;Marques et al, 2005) and peripheral areas of the Cerrado (Couto et al, 2007). In contrast, Typhlops reticulatus, Bothrops brazili, Hydrops triangularis, and Pseustes poecilonotus are found predominantly in the Amazon basin (Cunha & Nascimento, 1993;Martins & Oliveira, 1998;Prudente & Santos-Costa, 2005;Maschio et al, 2009), while Phalotris nasutus, Liotyphlops beui, and Apostolepis flavotorquata are found in the Cerrado (França et al, 2008). Overall, the species composition of the local snake community further reinforces the ecologically transitional nature of the study area as an ecotone of the Amazon and Cerrado biomes.…”

Section: Discussionmentioning

confidence: 99%

“…Ecology and phylogeny may account for the structure of a snake community, and the morphological variation among species might be a response to ecological factors such as habitat use and diet (França et al, 2008). The unique history of each group that makes up a community imposes a series of limitations -morphological, physiological, and behavioral -that influence the ecological role of each lineage (Cadle & Greene, 1993).…”

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confidence: 99%

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Composition and ecological patterns of snake assemblages in an Amazon-Cerrado Transition Zone in Brazil

Pinheiro

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et al. 2015

Iheringia, Sér. Zool.

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ABSTRACT. The present study encompasses the species composition and ecological characteristics of the snake community in a Cerrado-Amazon transition zone in Midwest of Brazil (state of Mato Grosso). The data were collected during six excursions to the "Tanguro" (study area) by visual encounter survey, pitfall traps with drift fences and non-systematic sampling. We collected 194 specimens, distributed in 34 species, 26 genera, and eight families. The most abundant species were Crotalus durissus Linnaeus, 1758 (n = 50), Philodryas olfersii (Lichtenstein, 1823) (n = 15), Philodryas nattereri Steindachner, 1870 (n = 13), Xenodon rabdocephalus (Wied, 1824) (n = 12), Lachesis muta (Linnaeus, 1766) (n = 10) and Erythrolamprus almadensis (Wagler, 1824) (n = 10). The composition of species found here represents a combination of Cerrado and Amazonian savanna fauna.

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Composition and ecological patterns of snake assemblages in an Amazon-Cerrado Transition Zone in Brazil

Pinheiro

Abe

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et al. 2015

Iheringia, Sér. Zool.

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“…Drymarchon corais é considerada uma serpente generalista (Vanzolini 1986, Greene 1997, França et al 2008 (Greene 1997) e o Dipsadidae Pseudoboini Rhachidelus brazili (França et al, 2008, Sawaya et al 2008. Sapos do gênero Rhinella são venenosos, porém explorados por algumas espécies de serpentes como Xenodon rabdocephalus (Martins & Oliveira 1998) e D. corais (Greene 1997, França et al 2008.…”

Section: Discussionunclassified

“…Sapos do gênero Rhinella são venenosos, porém explorados por algumas espécies de serpentes como Xenodon rabdocephalus (Martins & Oliveira 1998) e D. corais (Greene 1997, França et al 2008. Um espécime foi observado inspecionando um buraco no chão pela manhã.…”

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Hábitos alimentares de serpentes em Espigão do Oeste, Rondônia, Brasil

Bernarde

Abe

2010

Biota Neotrop.

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Abstract:The present study reports on food habits of snakes in Espigão do Oeste, Rondônia State (Southwestern Amazonia), Brazil. Snakes were recorded by time constrained search, pitfall traps with drift fences, captures by local inhabitants, and opportunistic sightings. The snakes collected had their stomachs and intestinal contents examined. Information on food habits was obtained for 89 specimens belonging to 31 species. The majority of the 114 items found (stomach contents and field observations) were adult frogs (38%), followed by mammals (16%), lizards (15%), mollusks (13%), birds (5%), and snakes (5%). The majority of snake species from Espigão do Oeste feed on lizards, as in Central Amazonia (Manaus). A smaller proportion of snakes in the Amazonia feed upon frogs in relation to the Pantanal, South and Southeastern Brazil. These differences may be due to greater proportion of Xenodontinae in extra-Amazonian communities, as many snakes in that clade prey upon frogs. Most of the frogs and lizards species recorded in stomach contents snakes are terrestrial, which should be associated with most species of analysed snakes (52%) foraging on the ground. Keywords: Reptilia, Squamata, prey, diet, Amazonia. Resumo: O presente estudo teve como objetivo estudar os hábitos alimentares das serpentes em Espigão do Oeste, Rondônia (Sudoeste da Amazônia), Brasil. As serpentes foram registradas através de procura limitada por tempo, armadilhas de interceptação e queda, coleta por terceiros e encontros ocasionais. As serpentes coletadas tiveram o conteúdo estomacal e intestinal examinados. Em 89 espécimes pertencentes a 31 espécies de serpentes foram registradas informações sobre alimentação. Dos 114 itens registrados (conteúdos estomacais e observações na natureza), a maioria foi de anuros (38%), seguidos de mamíferos (16%), lagartos (15%), moluscos (13%), aves (5%) e serpentes (5%). A maioria das espécies de serpentes de Espigão do Oeste preda lagartos, assim como na Amazônia Central (Manaus). Uma menor proporção de serpentes na Amazônia utiliza anuros em relação às regiões do Pantanal, sul e sudeste do Brasil. Essas diferenças podem ser devidas à maior proporção de Xenodontinae nas comunidades extra-amazônicas, uma vez que muitas das serpentes desse clado predam anuros. A maioria dos anfíbios anuros e lagartos encontrados nos conteúdos estomacais das serpentes apresentam hábitos terrícolas, o que deve estar associado com a maioria das espécies de serpentes (52%) forragearem sobre o chão.

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Is xenodontine snake reproduction shaped by ancestry, more than by ecology?

Bellini

Arzamendia

Giraudo

2016

Ecology and Evolution

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One of the current challenges of evolutionary ecology is to understand the effects of phylogenetic history (PH) and/or ecological factors (EF) on the life‐history traits of the species. Here, the effects of environment and phylogeny are tested for the first time on the reproductive biology of South American xenodontine snakes. We studied 60% of the tribes of this endemic and most representative clade in a temperate region of South America. A comparative method (canonical phylogenetic ordination—CPO) was used to find the relative contributions of EF and PH upon life‐history aspects of snakes, comparing the reproductive mode, mean fecundity, reproductive potential, and frequency of nearly 1,000 specimens. CPO analysis showed that PH or ancestry explained most of the variation in reproduction, whereas EF explained little of this variation. The reproductive traits under study are suggested to have a strong phylogenetic signal in this clade, the ancestry playing a big role in reproduction. The EF also influenced the reproduction of South American xenodontines, although to a lesser extent. Our finding provides new evidence of how the evolutionary history is embodied in the traits of living species.

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Phylogeny and Ecology Determine Morphological Structure in a Snake Assemblage in the Central Brazilian Cerrado

Cited by 76 publications

References 42 publications

Composition and ecological patterns of snake assemblages in an Amazon-Cerrado Transition Zone in Brazil

Composition and ecological patterns of snake assemblages in an Amazon-Cerrado Transition Zone in Brazil

Hábitos alimentares de serpentes em Espigão do Oeste, Rondônia, Brasil

Is xenodontine snake reproduction shaped by ancestry, more than by ecology?

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